var flag = true;

function sum(a, b) {
    return a + b;
}

if (flag) {
    console.log("------a.js")
}

export {flag, sum}
export var height = 1.86

export function fun1(x, y) {
    return x + y;
}

export class Person {
    run() {
        console.log("在奔跑");
    }
}

// export {flag, sum, height, fun1, Person}